serial port with gio ?

[Matrix <zhangcheng cgmobile com cn>]

Hi,

i'm writing an app which used to auto test AT commands...

i open fd with the /dev/ttyS0, and pass it to g_unix_input_stream_new

the qustion is how read the buf as line by line ?

because of the buffer size is 4K, if directly use 
g_data_input_stream_read_line, it will block forever,

and then i use g_buffered_input_stream_set_buffer_size to change the 
buffer size to 1 byte

it works, but it should be not efficient

and good ideas for this ?

thanks, and sorry for my bad english....